Clinical Report: Efficacy of Transcutaneous Auricular Vagus Nerve Stimulation in Stroke Recovery

Overview

This systematic review and meta-analysis evaluates the efficacy of transcutaneous auricular vagus nerve stimulation (taVNS) in enhancing recovery post-stroke. The findings indicate significant improvements in motor function, mental health, and activities of daily living among stroke patients receiving taVNS compared to control groups.

Background

Stroke is a leading cause of long-term disability, often resulting in persistent motor deficits and reduced quality of life. Traditional rehabilitation methods have limitations, especially in chronic stroke patients, highlighting the need for innovative interventions. taVNS presents a non-invasive alternative to traditional vagus nerve stimulation, potentially enhancing recovery through neuroplasticity.

Data Highlights

Key Findings

• taVNS significantly improves motor function scores in stroke patients.
• Enhanced mental health scores were observed in the taVNS group compared to controls.
• Activities of daily living (ADL) scores improved significantly with taVNS treatment.
• Neurophysiological metrics showed notable differences favoring taVNS.
• Subgroup analysis indicated better outcomes with 20 Hz taVNS and at least 10 treatment sessions.

Clinical Implications

taVNS may serve as a valuable adjunct to traditional rehabilitation strategies for stroke recovery, particularly in enhancing motor function and psychological well-being. Clinicians should consider incorporating taVNS into treatment plans for eligible stroke patients to optimize recovery outcomes.

Conclusion

The evidence supports the efficacy of taVNS in improving functional recovery post-stroke. Further research is warranted to refine treatment protocols and establish long-term benefits.

Related Resources & Content

1. Frontiers in Neurology, 2026 -- Effectiveness and safety of skull base-peripheral acupuncture for post-stroke cognitive impairment: a systematic review and meta-analysis of randomized controlled trials
2. Frontiers in Neurology, 2026 -- Effects of repetitive peripheral magnetic stimulation on upper extremity motor function recovery after stroke: a meta-analysis and dose-response study
3. Pain Medicine, 2023 -- Deep brain stimulation and motor cortex stimulation for central post-stroke pain: a systematic review and meta-analysis
4. VA DoD CPG for Management of Stroke Rehabilitation, 2024 -- Clinical Practice Guidelines
5. BMC Psychiatry (Springer) — Forecasting therapeutic outcomes of transcutaneous auricular vagus nerve stimulation in individuals with insomnia: analysis of resting-state functional connectivity through multivoxel pattern techniques
6. UK National Clinical Guideline for Stroke, 2023
7. European Stroke Organisation (ESO) guideline on motor rehabilitation
8. Vagal nerve stimulator for stroke rehab nabs FDA nod
9. VA DoD CPG for Management of Stroke Rehabilitation
10. Is vagus nerve stimulation added to rehabilitation more effective than rehabilitation alone in the recovery of upper limb function and activity after stroke? | Cochrane
11. Effects of transcutaneous auricular vagus nerve stimulation added to robotic rehabilitation in patients with ischemic stroke: a randomized clinical trial | BMC Neurology | Springer Nature Link